[ 2853.894674][T17998] mptcp_connect (17998) used greatest stack depth: 23200 bytes left
[ 3122.415299][T20694] ip[20694]: segfault at 0 ip 00000000004618c0 sp 00007ffcf66f8d38 error 6 in ip[618c0,40a000+64000] likely on CPU 1 (core 1, socket 0)
[ 3122.415710][T20694] Code: 74 20 45 39 60 10 75 f2 48 c7 c0 20 21 4e 00 8b 00 85 c0 75 0d 5b 49 8b 40 08 5d 41 5c c3 0f 1f 40 00 48 63 f5 44 89 e1 48 89 <df> 31 c0 48 8d 15 2f 41 02 00 e8 61 8b fa ff 48 89 d8 5b 5d 41 5c
[ 3123.402115][T20698] ip[20698]: segfault at 0 ip 00000000004618c0 sp 00007ffea8120c58 error 6 in ip[618c0,40a000+64000] likely on CPU 0 (core 0, socket 0)
[ 3123.402560][T20698] Code: 74 20 45 39 60 10 75 f2 48 c7 c0 20 21 4e 00 8b 00 85 c0 75 0d 5b 49 8b 40 08 5d 41 5c c3 0f 1f 40 00 48 63 f5 44 89 e1 48 89 <df> 31 c0 48 8d 15 2f 41 02 00 e8 61 8b fa ff 48 89 d8 5b 5d 41 5c